Re: [dm-devel] problem with multipathd, not all paths added to a disk on boot

[Mike Anderson <andmike linux vnet ibm com>]

Sebastian Reitenbach <sebastia l00-bugdead-prods de> wrote:
> /dev/sdb in group vm-store, on 1:0:0:0 is not listed, however, lsscsi
> has the disk in the list:
> [1:0:0:0]    disk    IBM      1814      FAStT  0916  /dev/sdb
> 
> for the disk that is not added to the group, I see sth like this 
> in /var/log/messages:
> Nov  6 12:32:36 srv24 kernel: end_request: I/O error, dev sdb, sector 0
> Nov  6 12:32:39 srv24 kernel: end_request: I/O error, dev sdb, sector 0
> Nov  6 12:32:39 srv24 kernel: end_request: I/O error, dev sdb, sector 8
> Nov  6 12:32:42 srv24 kernel: end_request: I/O error, dev sdb, sector 0
> Nov  6 12:32:42 srv24 multipathd: sdb: add path (uevent)
> Nov  6 12:32:42 srv24 multipathd: sdb: spurious uevent, path already in 
> pathvec
> Nov  6 12:32:42 srv24 multipathd: sdb: failed to get path uid
> Nov  6 12:32:45 srv24 kernel: end_request: I/O error, dev sdb, sector 0
> 

What does running "/sbin/scsi_id -g -u -s /block/sdb" return when you are
in this failing mode?

If scsi_id fails what does "sg_inq -v /dev/sdb" and
"cat /sys/block/sdb/device/state" return?

-andmike
--
Michael Anderson
andmike linux vnet ibm com